Method of observing the Sun at the Royal Observatory, Greenwich Size:Large: 7 x 5in HAPPALES JACCHUS

HAPPALES JACCHUS

Britannia shows off a new weapon to the Lord of the Admiralty

View showing the bay of an aisle next to the crossing

the First Lord of the Admiralty

Method of observing the Sun at the Royal Observatory, Greenwich Size:Large: 7 x 5in HAPPALES JACCHUSInterior view of a darkened chamber at the old Royal Observatory building, with a refracting telescope projecting an image of the Sun. The observatory was completed in 1676: in that year there were both solar eclipses and a transit of Mercury. Plate 3 (left half detail) from Ichnographia speculae Regiae Grenovici exquisite facta (London, 1676) a series of engravings commissioned by Sir Jonas Moore, the leading force in the construction and equipping